bumps just inside at the opening

I'm married and my husband and I had sex on saturday. Its thursday today and I developed a few bumps at the opening of my vagina. Its a fleshy colour.I know it can't be a std because I had a test done when I was pregnant a few months ago.while I was pregnant I was diagnost with diabetes. I had to have the baby for the baby died in my stomach and had to go through induced labour. I had to go for a check up for a womb cleaning and I didn't go.