So me and my boyfriend have been trying to conceive for about 2 1/2 months now almost 3 months and I’ve been going to Zumba everyday and for the past 4 days I will be working out and I get cramps and pain in my lower stomach and once in a while I will feel nausea we are wanting to get pregnant so bad but I do not want to get another negative just waiting on to miss my period... what can it be???