Need an opinion please and no judging.

Kyrstin
Almost 6 months ago my husband and I welcomed our second baby boy into our family. Since I have had him I've been getting my period every month but October I didn't get one but then got one in November and never got anything for December at all. We have had sex since my period ended in November but he never finished inside of me. I understand we should have used protection but we weren't thinking and a few nights it was a bit unexpected. Is there a chance I could be pregnant?