Well hello my name is Tamsin and im 18

basically me and my fiance have been trying for a baby for 8 months , knowing that due to me having Polycystic ovaries it may never happen . A doctor has advised me that my ovaries may cause more problems when i reach around 21 , so we knew if we wanted children we didnt have long. Ive known my partner almost 4 years and we are very happy together and both want a big family . We both are working and he finishes college in a few months and will be fully qualified engineer and i wish to go to university in about 12 months . So we are financially secure and we have a lovely home together.

I took a pregnancy test as my period was about 10 days late , it said negative ( it was a cheap one ) , a few days later i came on my period for 4 days and the first day was extremely painful and heavy . However i still am getting the sickness , abdomen pains , headaches , aching lower back , tiredness etc ..

We have a good sex life , normally once a day . Ive been told it is possible for me to be pregnant but not from beforemy period . Is that right ? I really need some advice