I am 18yrs old my birthday is this month on the 23rd and I will be 19. All I want is to know the answers to my questions for once & all...

My boyfriend and I have been trying recently to have a baby. Last month my period came 2weeks late, this was a big deal because my period pattern has been consistant since I started at age 12. So once I got it it was my typical period. This month my period came the same time as last months it was still late compared to my normal schedule tho. For about 2months now my breasts are rediculously tender, I have a tummy under my belly button that wasn't there before(we have been trying on & off for a few moths so I guess I could be showing from that, I mean I wouldn't be showing yet...Or would i? I am tired while I still maintain my normal sleep pattern, I feel hungry once I eat(it could be 1 piece of toast or a whole sandwhich, it doesn't matter what or how much) I feel sick & queezy then a few hrs later i'm hungry & again i'm ill, I have never actually thrown up yet tho. Each time my boyfriend and I have had sex 2 out of every 3 times he'll ejaculate inside me so I mean there is a very good chance I could be pregnant. But even though I was indeed late I still got my period, it's not real heavy normally anyway so I can't tell if it's "light" or not I wear tampons too so it seems harder for me to tell if i'm "spotting". Even when i'm not on my period lately my hips are sore & my lower stomach is slightly rounded...

Is there a chance I am pregnant considering all this?

Please help...

Ps: how much does a check up cost to find out if i'm pregnant?

How much is a blood test?

I don't have any insurance...