Hi, first time user and my question is am I pregnant? IM 24 with a 4 yr old son, I had un protected sex 23rd of August and since then have had 1 very light period which I'm normally very heavy and last week I had brown discharge for a day or two followed by a light period.. my breast are sensitive and there is lumps on my nipples, and I'm going to the toilet a lot more often then normal... can I get sum advise please

