I had unprotected sex 3 months ago and now my periods are only lasting 2 days at the most and are extremely light. My periods are usually heavy and last a minimum of 5 days. I hhave been gaining weight and having really weird cravings. My boobs are growing and nipples are showing bigger bumps on aerola and browning. I have taken 4 HPT and they have came out negative. Can I still be pregnant?

It is possible to be pregnant and have spotting or light bleeding at the time you'd expect a period. But four pregnancy tests say you are not pregnant. Unfortunately, there are lots of reasons for gaining weight, including cravings for high calorie food. That could also lead to your breasts getting bigger and feeling different.

To settle your mind, go and see a doctor or midwife, but it does sound as if you are not pregnant.